(In reply to Al Savage from comment #18)
> Yes, the shares were/are mounted via Nautilus prior to using FF to attempt to save a file, in that screenshot.
>
> ```
> asavage@Ubuntu1:~$ ls -al /var/run/user/1000/gvfs
> total 0
> drwx------ 2 asavage asavage 40 Jun 11 00:20 .
> drwx------ 21 asavage asavage 660 Jun 11 08:57 ..
> ```
>
> I use Nautilus to move files to/from shares without issue, but the file pickers in FF (snap), Thunderbird, and Chrome (deb) all show the shares but cannot work with them.
Then your user probably has a different user ID than `1000` (run `echo $UID` or `id` in a terminal and adjust your folder accordingly). I agree with [comment #19](https://bugzilla.mozilla.org/show_bug.cgi?id=1773624#c19) though that this is an unrelated issue.
(In reply to Al Savage from comment #18) user/1000/ gvfs
> Yes, the shares were/are mounted via Nautilus prior to using FF to attempt to save a file, in that screenshot.
>
> ```
> asavage@Ubuntu1:~$ ls -al /var/run/
> total 0
> drwx------ 2 asavage asavage 40 Jun 11 00:20 .
> drwx------ 21 asavage asavage 660 Jun 11 08:57 ..
> ```
>
> I use Nautilus to move files to/from shares without issue, but the file pickers in FF (snap), Thunderbird, and Chrome (deb) all show the shares but cannot work with them.
Then your user probably has a different user ID than `1000` (run `echo $UID` or `id` in a terminal and adjust your folder accordingly). I agree with [comment #19](https:/ /bugzilla. mozilla. org/show_ bug.cgi? id=1773624# c19) though that this is an unrelated issue.